This clocks in at default around 22–24mh/s. These slight boosts will boost your hashrate to about 26.5mh/s. I don’t want to push this card anymore since I rely on it for other things. I keep GPU at 1775. Boost memory clock to 8300. Set Power Target at 100. I set the GPU temp target at 70. source

with 6 GPU mining rig, max rate on eth around 130-135 with slight overclock, 80 tdp.
zec around 2100 sols easy with slight oc.
heat is the killer i run at around 76 degrees, but i am in for long game not too fussed on oc, not sure on power will have to check. source